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Vehicle Safety, Documents & TowingStandalone practice

You do the penny test on your front tire. At the point where the tread looks lowest, you put Lincoln's head into a groove. You can see all of Lincoln's head. What does this tell you?

A copper penny is placed headfirst into a shallow tire groove, with all of Lincoln’s upside-down head visible above the tread. A larger detail repeats that view; the card identifies a front tire’s lowest-tread point.

A copper penny is placed headfirst into a shallow tire groove, with all of Lincoln’s upside-down head visible above the tread. A larger detail repeats that view; the card identifies a front tire’s lowest-tread point.

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